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| − | --><span class="statement" id="st-d0_s0" data-properties="plant architecture;mound architecture or arrangement;branch atypical count;branch count;clump atypical some measurement;clump some measurement;clump density;clump architecture or arrangement"><b>Plants </b>branched, forming clumps or compact mounds of 20–100 (–500) branches, clumps 15–60 (–100) cm, either dense or lax.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem length or size;stem shape;stem length;stem width"><b>Stems </b>erect, long ovoid, less than 30 × 4.5–11 cm;</span> <span class="statement" id="st-d0_s2" data-properties="rib count">ribs 10–16;</span> <span class="statement" id="st-d0_s3" data-properties="crest shape">crests slightly undulate;</span> <span class="statement" id="st-d0_s4" data-properties="areole atypical some measurement;areole some measurement;areole arrangement">areoles 12–20 (–25) mm apart.</span> <span class="statement" id="st-d0_s5" data-properties="spine atypical count;spine count;spine course;spine coloration;spine coloration or reflectance;spine reflectance;spine coloration;spine coloration;spine coloration;spine coloration"><b>Spines </b>9–14 (–16) per areole, straight, straw colored, ± translucent, often glassy white tinted with yellow, darkest spines sometimes tan or brown;</span> <span class="statement" id="st-d0_s6" data-properties="spine arrangement;spine count;spine some measurement">radial spines 7–14 per areole, 15–40 mm;</span> <span class="statement" id="st-d0_s7" data-properties="central spine atypical count;central spine count;abaxial central spine orientation;central spine shape;central spine shape;central spine some measurement">central spines 2–4 (–5) per areole, abaxial central spine strongly projecting, all central spines terete or somewhat flattened, 57–100 mm.</span> <span class="statement" id="st-d0_s8" data-properties="flower length;flower atypical width;flower width"><b>Flowers </b>8–12 × 10–12.5 (–15) cm;</span> <span class="statement" id="st-d0_s9" data-properties="flower tube length;flower tube width">flower tube 25–35 × 15–35 mm;</span> <span class="statement" id="st-d0_s10" data-properties="flower tube hair some measurement">flower tube hairs 1–1.5 mm;</span> <span class="statement" id="st-d0_s11" data-properties="inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal atypical length;inner tepal length;inner tepal width;tip coloration;tip coloration;tip coloration;tip width;tip fragility">inner tepals rose-pink to magenta, darkest proximally and/or centrally, 55–60 (–80) × 12–25 mm, tips white to greenish, relatively thin and delicate;</span> <span class="statement" id="st-d0_s12" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s13" data-properties="nectar chamber some measurement">nectar chamber ± 5–8 mm.</span> <span class="statement" id="st-d0_s14" data-properties="fruit coloration;fruit coloration;fruit atypical some measurement;fruit some measurement;pattern prominence;pattern architecture or coloration or relief;tubercle shape;tubercle coloration;tubercle coloration"><b>Fruits </b>bright pinkish brown, with characteristic reticulate pattern of slightly darker or greener color between flattened tubercles, usually 35–40 (–50) mm, pulp white to pale-pink (varying on same plant).</span> <span class="statement" id="st-d0_s15" data-properties="pulp coloration;pulp coloration;pulp coloration;2n chromosome count">2n = 44.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>branched, forming clumps or compact mounds of 20–100(–500) branches, clumps 15–60(–100) cm, either dense or lax. <b>Stems</b> erect, long ovoid, less than 30 × 4.5–11 cm; ribs 10–16; crests slightly undulate; areoles 12–20(–25) mm apart. <b>Spines</b> 9–14(–16) per areole, straight, straw colored, ± translucent, often glassy white tinted with yellow, darkest spines sometimes tan or brown; radial spines 7–14 per areole, 15–40 mm; central spines 2–4(–5) per areole, abaxial central spine strongly projecting, all central spines terete or somewhat flattened, 57–100 mm. <b>Flowers</b> 8–12 × 10–12.5(–15) cm; flower tube 25–35 × 15–35 mm; flower tube hairs 1–1.5 mm; inner tepals rose-pink to magenta, darkest proximally and/or centrally, 55–60(–80) × 12–25 mm, tips white to greenish, relatively thin and delicate; anthers yellow; nectar chamber ± 5–8 mm. <b>Fruits</b> bright pinkish brown, with characteristic reticulate pattern of slightly darker or greener color between flattened tubercles, usually 35–40(–50) mm, pulp white to pale pink (varying on same plant). <b>2n</b> = 44.</span><!-- |
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| | + | |phenology=Flowering Mar–Jul; fruiting mostly Aug. |
| | |habitat=Chihuahuan desert scrub, rocky slopes, rarely flats, igneous and sedimentary substrates | | |habitat=Chihuahuan desert scrub, rocky slopes, rarely flats, igneous and sedimentary substrates |
| | |elevation=500-1800 m | | |elevation=500-1800 m |
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| | |basionyms= | | |basionyms= |
| | |family=Cactaceae | | |family=Cactaceae |
| | + | |phenology=Flowering Mar–Jul; fruiting mostly Aug. |
| | |habitat=Chihuahuan desert scrub, rocky slopes, rarely flats, igneous and sedimentary substrates | | |habitat=Chihuahuan desert scrub, rocky slopes, rarely flats, igneous and sedimentary substrates |
| | |elevation=500-1800 m | | |elevation=500-1800 m |
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| | |publication year= | | |publication year= |
| | |special status= | | |special status= |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_310.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_310.xml |
| | |subfamily=Cactaceae subfam. Cactoideae | | |subfamily=Cactaceae subfam. Cactoideae |
| | |genus=Echinocereus | | |genus=Echinocereus |
| | |species=Echinocereus stramineus | | |species=Echinocereus stramineus |
| | |variety=Echinocereus stramineus var. stramineus | | |variety=Echinocereus stramineus var. stramineus |
| − | |2n chromosome count=44
| |
| − | |abaxial central spine orientation=projecting
| |
| − | |anther coloration=yellow
| |
| − | |areole arrangement=apart
| |
| − | |areole atypical some measurement=20mm;25mm
| |
| − | |areole some measurement=12mm;20mm
| |
| − | |branch atypical count=100;500
| |
| − | |branch count=20;100
| |
| − | |central spine atypical count=4;5
| |
| − | |central spine count=2;4
| |
| − | |central spine shape=flattened;terete
| |
| − | |central spine some measurement=57mm;100mm
| |
| − | |clump architecture or arrangement=lax
| |
| − | |clump atypical some measurement=60cm;100cm
| |
| − | |clump density=dense
| |
| − | |clump some measurement=15cm;60cm
| |
| − | |crest shape=undulate
| |
| − | |flower atypical width=12.5cm;15cm
| |
| − | |flower length=8cm;12cm
| |
| − | |flower tube hair some measurement=1mm;1.5mm
| |
| − | |flower tube length=25mm;35mm
| |
| − | |flower tube width=15mm;35mm
| |
| − | |flower width=10cm;12.5cm
| |
| − | |fruit atypical some measurement=40mm;50mm
| |
| − | |fruit coloration=brown;bright pinkish
| |
| − | |fruit some measurement=35mm;40mm
| |
| − | |inner tepal atypical length=60mm;80mm
| |
| − | |inner tepal coloration=darkest;rose-pink;magenta
| |
| − | |inner tepal length=55mm;60mm
| |
| − | |inner tepal width=12mm;25mm
| |
| − | |mound architecture or arrangement=compact
| |
| − | |nectar chamber some measurement=5mm;8mm
| |
| − | |pattern architecture or coloration or relief=reticulate
| |
| − | |pattern prominence=characteristic
| |
| − | |plant architecture=branched
| |
| − | |pulp coloration=white;pale-pink
| |
| − | |rib count=10;16
| |
| − | |spine arrangement=radial
| |
| − | |spine atypical count=14;16
| |
| − | |spine coloration=brown;tan;darkest;white tinted with yellow;straw colored
| |
| − | |spine coloration or reflectance=translucent
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| − | |spine count=7;14
| |
| − | |spine course=straight
| |
| − | |spine reflectance=glassy
| |
| − | |spine some measurement=15mm;40mm
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| − | |stem length=0cm;30cm
| |
| − | |stem length or size=long
| |
| − | |stem orientation=erect
| |
| − | |stem shape=ovoid
| |
| − | |stem width=4.5cm;11cm
| |
| − | |tip coloration=white;greenish
| |
| − | |tip fragility=delicate
| |
| − | |tip width=thin
| |
| − | |tubercle coloration=greener color;darker
| |
| − | |tubercle shape=flattened
| |
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| | -->[[Category:Treatment]][[Category:Echinocereus stramineus]] | | -->[[Category:Treatment]][[Category:Echinocereus stramineus]] |
Plants branched, forming clumps or compact mounds of 20–100(–500) branches, clumps 15–60(–100) cm, either dense or lax. Stems erect, long ovoid, less than 30 × 4.5–11 cm; ribs 10–16; crests slightly undulate; areoles 12–20(–25) mm apart. Spines 9–14(–16) per areole, straight, straw colored, ± translucent, often glassy white tinted with yellow, darkest spines sometimes tan or brown; radial spines 7–14 per areole, 15–40 mm; central spines 2–4(–5) per areole, abaxial central spine strongly projecting, all central spines terete or somewhat flattened, 57–100 mm. Flowers 8–12 × 10–12.5(–15) cm; flower tube 25–35 × 15–35 mm; flower tube hairs 1–1.5 mm; inner tepals rose-pink to magenta, darkest proximally and/or centrally, 55–60(–80) × 12–25 mm, tips white to greenish, relatively thin and delicate; anthers yellow; nectar chamber ± 5–8 mm. Fruits bright pinkish brown, with characteristic reticulate pattern of slightly darker or greener color between flattened tubercles, usually 35–40(–50) mm, pulp white to pale pink (varying on same plant). 2n = 44.
Phenology: Flowering Mar–Jul; fruiting mostly Aug.
Habitat: Chihuahuan desert scrub, rocky slopes, rarely flats, igneous and sedimentary substrates
Elevation: 500-1800 m
Distribution
N.Mex., Tex., Mexico (Chihuahua, Coahuila, Nuevo León).
Discussion
The densely branched stems of Echinocereus stramineus form hemispheric mounds bristling with unusually long, yellow-tinted spines, thus appearing like a heap of straw; old clumps of these cacti are unique visual dominants on many rocky slopes in the Chihuahuan Desert. The delicious ripe fruits of this species are much larger than those of E. enneacanthus, and may be the largest fruits in the genus. Rare white-flowered individuals occur.
Selected References
None.
